As the winter came I decided to change tyres in my car. This year I had to buy new set as old one was completely worn out. I got rid of it last year and now I had to buy new winter tyres. I know this shop were they have a rally good prices so I did not wait too long and I went there. They change the tyres for free there as long as the tyres were bought there. So I went there. Well I drove there and when I was there I chose new winter tyres. It was some newest model and it was probably the best type of winter tyres. I was pretty exited and I just waited as the tyres were being changed. Then I drove back home and I just lived my regular life. But when the first snow fell on the streets I noticed something. When I was using breaks in my car the car was turning a bit left. First it did not bordered me but the situation was later pretty annoying. I went to a mechanic and he told me that the tyres I had were different. Somebody put different sized tyres to my car and that was the problem. I quickly realized that the mistake was made in the shop were I bough winter tyres. I drove there as fast as I could and I told the manager about all the situation. Luckily they replaced wrong tyres without any additional costs and they apologized for the mistake. Now I am calmer as I know that everything is just fine with the tyres.